Read the paragraph from the section "History Of Newton's Laws Of Motion." Sir Isaac Newton introduced the three Laws of Motion in 1687 in his book entitled "Philosophiae Naturalis Principia Mathematica" (or simply "The Principia"). The same book also discussed the theory of gravity. This one volume described the main rules still used in classical mechanics today. Which option is the BEST definition of the word "classical" as used in the paragraph? (A) (B) 2606 modern and dynamic traditional and long-established (C) restrained and plain (D) harmonious and symmetrical